Next question Sample annual salaries in thousands of dollars) for employees at a company are listed
40 35 58 48 30 30 40 35 58 29 48 40 42
(a) Find the sample mean and sample standard deviation
(b) Each employee in the sample is given a $3000 raise. Find the sample mean and sample standard deviation for the revised data set.
(c) Each employee in the sample takes a pay cut of $4000 from their original salary. Find the sample mean and the sample standard deviation for the revised data set.
(d) What can you conclude from the results of (a), (b), and (c)?